KV Cache Memory Explosion

Watch as context length grows, memory consumption becomes the bottleneck
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Context: 0 tokens
Alloc Unit: —
Total Memory: 0 GB
Model Weights: —
KV Cache Size: 0 GB
GPUs: 1
Efficiency: 100%
Data Type: FP16
📐 Efficiency Formula
η = KV Cache Size Total GPU Memory × 100 %
High efficiency (>80%) means optimal GPU utilization.
Medium efficiency (50-80%) indicates some wasted resources.
Low efficiency (<50%) means you're paying for unused GPU memory!
💡 Example: Needing 45 GiB but allocating an 80 GiB H100 = 56% efficiency = $1.10/hour wasted

Info

⚠️ Warnings appear when memory exceeds single-GPU capacity or requires multi-node configuration
kvcache-view
Memory calculations based on LMCache KV Cache Calculator formulas
Visualization inspired by LMCache research on KV cache optimization
→ Training Memory Simulation